Introduction

This guide shows how to remove and replace an inner tube of a tire. This process may difficult he first time it is attempted.

Tools

Parts

Remove the flat tire by loosening and removing the axle nut with a 19 mm wrench. Unscrew the axle bolt with a 19 mm socket wrench. Remove the axle bolt from hole and remove the wheel from the wheelchair.
  • Remove the flat tire by loosening and removing the axle nut with a 19 mm wrench.

  • Unscrew the axle bolt with a 19 mm socket wrench.

  • Remove the axle bolt from hole and remove the wheel from the wheelchair.

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Insert the 19 mm socket wrench between the rubber tire and the metal frame. Any rigid flat object will do for this step.
  • Insert the 19 mm socket wrench between the rubber tire and the metal frame.

  • Any rigid flat object will do for this step.

  • Carefully run the 19 mm socket wrench along the edge of the tire all the way around and bend the wrench down to pop the tire out of the rim.

  • When undoing the tire, be careful using the back of the wrench because the tool can damage the tire tube and or wheel frame.

  • Reach inside the tire and remove the tube from the metal frame.

  • Carefully feed the air valve through the hole in the rim before removing, or you could tear a larger hole in the tire.

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Reach inside the tire and remove the tube from the metal frame.
  • Reach inside the tire and remove the tube from the metal frame.

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Before replacing the tube, feel along the tire to check for and remove any objects stuck in the tire.
  • Before replacing the tube, feel along the tire to check for and remove any objects stuck in the tire.

  • Line up the air valve on the new (partially deflated) tube with the hole on the metal frame.

  • Working all around the tire, carefully push the tube back into place inside the tire.

  • Finally, push the tire back into place on the metal frame and inflate the tire.

  • The tire should be inflated to 50 psi and very hard.

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Insert the axle bolt into center of rear wheel. Insert the wheel with the axle bolt into the lower back of the frame.
  • Insert the axle bolt into center of rear wheel.

  • Insert the wheel with the axle bolt into the lower back of the frame.

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Screw the bolt on the outside of the wheel with a 19 mm socket wrench. Screw the nut on the inside of the wheel with a 19 mm wrench.
  • Screw the bolt on the outside of the wheel with a 19 mm socket wrench.

  • Screw the nut on the inside of the wheel with a 19 mm wrench.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

Kali Slaughter

Member since: 04/19/2013

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5 Guides authored

Team

Cal Poly, Team 14-8, Maness Spring 2013 Member of Cal Poly, Team 14-8, Maness Spring 2013

CPSU-MANESS-S13S14G8

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